tvl-depot/nix/buildBazelPackageNG/buildBazelPackageNG.nix

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{ stdenv
, lib
, pkgs
, coreutils
}:
{ name ? "${baseAttrs.pname}-${baseAttrs.version}"
, bazelTargets
, bazel ? pkgs.bazel
, depsHash
, extraCacheInstall ? ""
, extraBuildSetup ? ""
, extraBuildInstall ? ""
, ...
}@baseAttrs:
let
cleanAttrs = lib.flip removeAttrs [
"bazelTargets"
"depsHash"
"extraCacheInstall"
"extraBuildSetup"
"extraBuildInstall"
];
attrs = cleanAttrs baseAttrs;
base = stdenv.mkDerivation (attrs // {
nativeBuildInputs = (attrs.nativeBuildInputs or [ ]) ++ [
bazel
];
preUnpack = ''
if [[ ! -d $HOME ]]; then
export HOME=$NIX_BUILD_TOP/home
mkdir -p $HOME
fi
'';
bazelTargetNames = builtins.attrNames bazelTargets;
});
cache = base.overrideAttrs (base: {
name = "${name}-deps";
bazelPhase = "cache";
buildPhase = ''
runHook preBuild
bazel sync --repository_cache=repository-cache $bazelFlags "''${bazelFlagsArray[@]}"
bazel build --repository_cache=repository-cache --nobuild $bazelFlags "''${bazelFlagsArray[@]}" $bazelTargetNames
runHook postBuild
'';
installPhase = ''
runHook preInstall
mkdir $out
echo "${bazel.version}" > $out/bazel_version
cp -R repository-cache $out/repository-cache
${extraCacheInstall}
runHook postInstall
'';
outputHashMode = "recursive";
outputHash = depsHash;
});
build = base.overrideAttrs (base: {
bazelPhase = "build";
inherit cache;
nativeBuildInputs = (base.nativeBuildInputs or [ ]) ++ [
coreutils
];
buildPhase = ''
runHook preBuild
${extraBuildSetup}
bazel build --repository_cache=$cache/repository-cache $bazelFlags "''${bazelFlagsArray[@]}" $bazelTargetNames
runHook postBuild
'';
installPhase = ''
runHook preInstall
${builtins.concatStringsSep "\n" (lib.mapAttrsToList (target: outPath: lib.optionalString (outPath != null) ''
TARGET_OUTPUTS="$(bazel cquery --repository_cache=$cache/repository-cache $bazelFlags "''${bazelFlagsArray[@]}" --output=files "${target}")"
if [[ "$(echo "$TARGET_OUTPUTS" | wc -l)" -gt 1 ]]; then
echo "Installing ${target}'s outputs ($TARGET_OUTPUTS) into ${outPath} as a directory"
mkdir -p "${outPath}"
cp $TARGET_OUTPUTS "${outPath}"
else
echo "Installing ${target}'s output ($TARGET_OUTPUTS) to ${outPath}"
mkdir -p "${dirOf outPath}"
cp "$TARGET_OUTPUTS" "${outPath}"
fi
'') bazelTargets)}
${extraBuildInstall}
runHook postInstall
'';
});
in
build